brake pedal goes to floor sometimes

Here is a more detailed list of the common causes of brake pedal goes to the floor when the engine is running or when starting the car. There are still other causes of this problem.

Why Brake Pedal Goes To Floor When Engine Running Rx Mechanic

Check your brake fluid.

. 15 seconds later the pedal was firm and normal. At this time pumping the brakes 2-3 times firms up the pedal again and everything is fine. When youre out of brake fluid your brakes simply wont work.

The pedal will then continue to drop to the floor until the vehicle is turned off. Forcibly flush system replace fluid observe resultsfluid color changeetc if no improvement garauntee a little improvement then you have leak in the system causing air bubbles. Items 1 and 2 are what you want to look at if there is a brake leak.

You Have a Brake Fluid Leak. I have taken it to several mechanics for this problem and we have changed the master cylinder rebuilt the booster and machined the discs and replaced the pads. I have had new brake pads put on and the master replaced.

Fortunately problems or issues in a cars braking system are not very hard to diagnose. Brake pedal shouldnt go to floor for any reason. Clicking this will make more experts see the question and we will remind you when it gets answered.

Brake booster appears to be working and there doesnt appear to be any leaks. One of the more common causes for the brake pedal going to the floor is a loss of brake fluid. It would feel the same with the engine off and pushing the brake pedal several times bleeding the vacuum away.

Reply 10 Wednesday Sep 27 2006 0526 PM. This is pretty easy to diagnose. Once it drops to the floor the brakes are very weak but will stop the vehicle at least at the low speeds it has happened to me at.

It also happened a few times while driving on highway at higher speeds so the first 40-50 of pedal travel it looks like it doesnt brake at all then it brakes but its not even close to the usual braking. It takes longer to stop or you get less braking power when you apply the brakes suddenly. 8 Mar 21 2016.

Brake pedal sometimes goes to the floor. If its low top it off to the mark on the side of the reservoir. Pressure on the brake fluid cases the brakes to be applied to the wheels.

Find your leak and you will fix the problem. When it goes to the floor it doesnt stop the vehicle. This is the only circumstance that the brakes fail like I.

Theres one more thing that could be causing the brake pedal to go all the way to the floor. The more the brakes are used the hotter the brake fluid gets. Faulty master brake cylinder.

Below we have listed five common reasons why your Pontiac Grand Prixs brake pedal may be hitting the floor. Yesterday I almost got into an accident when I had to do a panic stop and it went straight down so I had to swerve. You should be able to see brake fluid underneath the car if theres a leak in the system.

Vacuum leak when large enough would reduce the function of the booster and the pedal becomes hard to push but will not go to the floor. Rogue Brake Pedal Goes to Floor. Its colorless unlike engine oil or antifreeze and it has the.

If high then there is a problem with the master cylinder. As title states my braking pedal sometimes goes to floor during driving mainly when Im in a traffic jam and using the brakes actively. I would also inspect every line to see if there are any leaks anywhere.

Another common reason why your brake pedal may go down to the floor is because you are running low on brake fluid. Jump to Latest Follow. Sometimes your brakes will still work but they seem to have grown weak.

I have to completely release the pedal then re-apply pressure and the brakes work fine again. Items 1 and 2 are what you want to look at if there is a brake leak. But if there are no leaks and the brake pedal goes to the floor sometimes there might be a vacuum leakage in the brake booster or master cylinder.

Posted by dennis6630 on Jul 07 2010. Weak or Spongy Brakes. Maybe it isnt a problem not sure.

Items 3 4 and 5 are reasons why the pedal could sink to the floor with no leak at all. You will feel the pedal becoming harder to push in. Sometimes when I go to brake the pedal will go half way down like its suppose to then I feel a release of pressure and it goes to the floor.

Sometimes when doing this for a while out of the blue the pedal will go to the floor. Below we have listed five common reasons why your Nissan Rogues brake pedal may be hitting the floor. Check brake fluid level.

Causes of Brake Pedal Goes to Floor When Engine Running or Starts. Brake pedal sometimes goes to the floor. Sometimes when I need to stop quickly the brake pedal goes to the floor and I have to pump it which is dangerous.

The master cylinder is where brake fluid gets compressed. So an interesting braking problem. The pedal may also feel more squishy than usual.

Items 3 4 and 5 are reasons why the pedal could sink to the floor with no leak at all. Brake Pedal Goes to the floorsometimes. The most common reason this happens is because you have a leak in one of your lines.

If the fluid is low add until the proper level and check for leaks in the brake lines. If the brake pedal is intermittently going to the floor she should not drive the car at all until it is fixed. Brake pedal will slowly go to the floor sometimes but not always when it does you lose braking power unless you let up pump the brake.

Still it does not always want to stop right away. Especially if I am turning and need to stop like into a driveway. In the past when Ive had them go out what happens is the pedal will slowly go to the floor while you hold steady pressure on it like at a.

I usually fix this issue with pumping the brakes. Grand Prix Brake Pedal Goes to Floor. Low Brake Fluid Level.

I remember a few days ago I did a panic stop and. It does not always happen. I will feel the pedal go soft and itll go to the floor.

If you have air in your brake lines you will need to have the brake lines bled to remove the air. Recently I have been having problems with my brake pedal going to the floor. Try bleeding the brakes first and see if that cures the problem.

The more the brakes are used the hotter the brake fluid gets. When the pedal goes to the floor its usually caused by a bad master cylinder leaking brakes bad brake shoes if equipped with rear drums and a few other reasons.

4 Reasons Your Brake Pedal Goes To The Floor And How To Fix It

Why Brake Pedal Goes To Floor When Engine Running Rx Mechanic